This document introduces the features and characteristics of the STEVAL-MKI117V1 MEMS microphone demonstration board based on the MP34DT01 and STM32. The demonstration board can be connected to PC through USB and is automatically recognized as an audio device by PC.
The STEVAL-MKI117V1 demonstration board is designed to demonstrate the decoding and streaming of digital MEMS microphone outputs. It hosts the MP34DT01 digital microphone as a sensor and the STM32F107RC microcontroller as an audio decoder. The microphones utilize the PDM technique to convert sound pressure into digital signals, which are then decoded and streamed to a PC via USB.
| Microphone Type | MP34DT01 |
|---|---|
| Microcontroller | STM32F107RC |
| Data Stream Frequency | 1 to 3.25 MHz |
| Sample Format | 1-bit digital samples |
| Connection Interface | USB |
| Compliance | RoHS compliant |
The purpose is to provide an example of the decoding and streaming of digital MEMS microphone outputs.
The board is powered and connected to the PC through a USB cable, which is automatically recognized as an audio device.